Yahoo! image search problem, with Windows Vista, IE 9

For some weird reason, Yahoo! image searches no longer work properly on a Vista computer using Internet Explorer 9. (It's my daughter's system, and she uses a Yahoo! home page, and prefers IE 9).

There is a page of images, but when you click on one of them (right or left click) it brings up a different image, from the same search. A Google image search works as it is supposed to, however. I tried clearing all of the image files out of the IE cache. That didn't help.